Official websites use .govA .gov website belongs to an official government organization in the United States. or https://	means youâve safely connected to the .gov website. Share sensitive information only on official, secure websites. The Department of Defense (DOD) provides the military forces needed to deter war, and to protect the security of the United States. Ask a real person any government-related question for free. They will get you the answer or let you know where to find it.